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From: Bruce Maccabee <brumac@compuserve.com>
Date: Tue, 17 Feb 1998 11:04:12 -0500
Fwd Date: Tue, 17 Feb 1998 16:01:49 -0500
Subject: Re: Mexico City UFO of 8/6/1997


>Date: Mon, 16 Feb 1998 09:09:27 -0800 (PST)
>To: UFO UpDates - Toronto <updates@globalserve.net>
>From: Jim Deardorff <deardorj@proaxis.com>
>Subject: Re: UFO UpDate: Re: Mexico City UFO of 8/6/1997

>>Date: Mon, 16 Feb 1998 00:13:42 -0500
>>From: Bruce Maccabee <brumac@compuserve.com>
>>Subject: UFO UpDate: Re: Mexico City UFO of 8/6/1997
>>To: UFO UpDates - Toronto <updates@globalserve.net>

>>It is my understanding from Brit Elders that there are at least 2
>>dozen witnesses from all walks of life.

>>Analysis of the video has continued (sub rosa) since my intial
>>posts on various internet sites last fall.  The analysis confirms
>>the initial acceleration in no more than 1/30 sec and possibly in
>>1/60 sec.

>If you were to assume a minimal distance away for the UFO, a
>little on the far side of the buildings, you would have a minimal
>value for its speed after it got moving.  Then taking the 1/30
>sec figure, you'd have a minimal value for its acceleration. What
>would that turn out to be -- around 30 g?

Yes, about 26 g's at 1/30 sec; twice that at 1/60.

>>The analysis also shows that the tilting that appears to be cause
>>by rotation of the symmetry axis about vertical (like precession
>>of a top) is at a 1 Hz rate and is continuous from the beginning
>>to the end of the video of the object, and can be fitted from the
>>beginning to th end with a single sine wave function.

>I guess that at least tells us that the UFO's operator was well
>aware of our 1-second time unit.

Not necessarily.   The exact oscillation rate, assuming the frame
rate is exactly 1/30 sec (depends upon crystal oscillator in the
camera), is..... 1.065 Hz.